I expected to see the Serenity trailer before Hitchhiker's Guide.
I was disappointed.
I hoped to see the Serenity trailer before Batman Begins or Charlie and the Chocolate Factory.
I was disappointed once more.
Then, when I least expect it and when I'd pretty much given up all hope of seeing it, I go to see The 40 Year Old Virgin last night, and THERE IT IS!
I practically had an orgasm just sitting there watching it. =D